What is the z score for test scores of 70 and 90?  TEST SCORES: 50,60,61,63,66,67,73,82,89,92

Q: find first and third quartile…

A: Given, the following…

Q: In a poll of 513 human resource professionals, 45.8% said that body piercings and tattoos were big…

A: sample size(n)=513sample proportion()=45.8%=0.458

Q: find out 3rd decile  65,85,75,30,20,42,94,34,75,15

A:

Q: Find the 1rst quartile and 3rd quartile of the following numbers  41,43,46,47,48,50,51,52,53,54,55

A: The given numbers already in the increasing order: 41,43,46,47,48,50,51,52,53,54,55 Median = middle…

Q: What is the IQR of the following values? 85, 67, 32, 38, 45, 9, 13

A: Given:

Q: What is the value of Ex² for the scores 1, 0, 2, 4? O 21 O 28 O 14

A:

Q: find out the mode, median and mean  74,78,45,7,9,65,7,2,35,68,45,78,98,99

A:

Q: Find the median 12 ,19,65,58, 9,12

A: It is a single value within the range of data which represents a group of individuals values in a…

Q: Ignacio is curious about the average age of cars in the commuter lot at his large university. He…

A: We can solve by the following given data

Q: A Sample of 25 cities have been classified as high or low on their homicide rates and on the number…

A: The formula for chi-square is, χ2=∑fo-fe2fe In the formula fo is the observed frequency, fe is the…

Q: What is the mode of the following: 49, 74, 99, 74, 74, 10, 65, 49, 51

A: Mode: The number that appears most frequently in the data set is called as Mode. Given data, 49, 74,…

Q: Please no written by hand solution and no img  In a random survey of 40 algebra 1 students at A&M…

A: Number of students who love their math class = 30 Total number of students surveyed = 40

Q: Choose a match 0.5453 -2.01

A: It is given that P(-2.01 < Z < z) = 0.5453,  Where Z follows N(0,1)

Q: TRI, TRIMMED,WINSORIZED MEANS for this value! Age of employees : 9,18,6, 3, 12, 15, 12,…

A: Given that  Age of employees : 9,18,6, 3, 12, 15, 12, 21,12,13,16,23,17,18,13,15,16,19,14,16

Q: Create 5 Number Summaries: minimum, Q1, Q2, Q3(median), maximum, using the following data sets.…

A: Data : { 45,58,34,42,52,49,50,45,51 } First arrange data in increasing order : { 34, 42, 45, 45, 49,…

Q: What is the average of 47, 38, 56, and 43? O 47 O 184 O 46 O 44

A: Given Data: Given Numbers: 47, 38, 56, 43 There are four numbers given. So, n=4 The average of the…

Q: Find the sample mean 73,62,37,48,74,95,52,53,74,93,101,94,16,47

A: Answer: From the given data, The given data set is, 73,62,37,48,74,95,52,53,74,93,101,94,16,47…

Q: What is the mean of 1,-3,4,5,7?

A: Given data, 1,-3,4,5,7   Mean=?

Q: The mean of 11 numbers is 8. One of the numbers, 13, is deleted. What is the mean of the remaining…

A:

Q: 66, 69, 71, 72, 73.5, 74, 74, 76.5, 76.5, 77.5, 78, 80, 81, 85, 86, 86, 86, 87, 87, 87.5, 88.5, 89,…

A: Given information: 66, 69, 71, 72, 73.5, 74, 74, 76.5, 76.5, 77.5, 78, 80, 81, 85, 86, 86, 86, 87,…

Q: 488​, 296​, 488​, 384​, 360​, 336​, 416​, 472 mean

A:

Q: in a math test , 368 students from a scool took a  test , the scores   are 5,10,18,26 and 31 . find…

A: First calculate mean and standard deviation of the sample scores .  The sample size is n=5. The…

Q: A teacher claims that over 14% of maths students are married. In the suevey at the beginning of…

A:

Q: What is the median of the following values? 90, 58,12, 85, 24,41, 1

A: To calculate the median of a given data set, we need to check first whether given data count is even…

Q: In a recent Gallup poll, 1003 randomly selected adults in the United States were asked if they have…

A: According to the provided information, 1003 randomly selected adults in the United States were asked…

Q: Fifteen students took a test. The marks obtained by 10 student, who have cleared the test, are given…

A:

Q: A class took an English test and a Math test. The test scores of 25 students for both tests are…

A: Given:   English Math 60 80 35 40 80 45 88 85 76 90 30 95 66 65 50 75 75 55…

Q: Given: 37, 27,17,40,20,33,20 Find the, 1.Mean

A:

Q: find third quartile   105,108,110,110,112,120,140,150,180

A:

Q: Find the median of the first 9 natural numbers.

A: Natural Numbers are the non negative , whole nos. They are from 1,2,3 ,..... . Here, Number of…

Q: Find the mean, median, 1rst quartile and 3rd quartile of the following numbers:…

A:

Q: Find P₄₁ , which is the score separating the bottom 41% from the top 59%. P₄₁ =

A: It is given that the area is 0.41.

Q: Find the mean of 4,6,8,10 and 12

A: The data set is: 4, 6, 8, 10 and 12 The formula to compute the mean is: Mean=Sum of…

Q: .If a committee with 2 student members is to be formed, what is the probability of forming a…

A: Hey there! Thank you for posting the question.  Since there are multiple questions posted, we will…